import {sourceIcon,observationSourceStatusLabel} from "../../../../packages/spatial-ui/src/ObservationSourcePicker";
export {ObservationSourcePicker,observationSourceStatusLabel} from "../../../../packages/spatial-ui/src/ObservationSourcePicker";
import { Icon } from "@nodedc/ui-react";

import type {
  ObservationSourceDescriptor,
} from "../core/runtime/contracts";
import { MseFmp4WebSocketPlayer } from "./MseFmp4WebSocketPlayer";
import {
  RecordedFmp4Player,
  type RecordedObservationPlayback,
} from "./RecordedFmp4Player";
import type {
  RecordedAdmissionPhase,
  RecordedCameraAdmissionState,
} from "../core/observation/recordedSessionAdmission";
import { liveCameraPlaybackAuthorityIdentity } from "../core/observation/liveCameraRecovery";

export function ObservationMedia({
  source,
  playback,
  prepareRecorded = true,
  recordedSessionGate = "ready",
  recordedAdmissionKey = null,
  onRecordedAdmissionChange,
}: {
  source: ObservationSourceDescriptor;
  playback?: RecordedObservationPlayback | null;
  prepareRecorded?: boolean;
  recordedSessionGate?: RecordedAdmissionPhase;
  recordedAdmissionKey?: string | null;
  onRecordedAdmissionChange?: (
    sourceId: string,
    state: RecordedCameraAdmissionState,
  ) => void;
}) {
  const sourceSelected = source.activation ? source.activation.selected : true;
  const deliveryActive = Boolean(source.delivery && sourceSelected);

  if (
    deliveryActive &&
    source.delivery?.kind === "mse-fmp4-websocket" &&
    source.modality === "video"
  ) {
    return (
      <MseFmp4WebSocketPlayer
        delivery={source.delivery}
        label={source.label}
        recoveryAuthorityIdentity={liveCameraPlaybackAuthorityIdentity(source)}
      />
    );
  }

  if (
    deliveryActive &&
    source.delivery?.kind === "recorded-fmp4-manifest" &&
    source.modality === "video"
  ) {
    if (!prepareRecorded) {
      return (
        <div className="observation-media__empty" role="status">
          <span className="busy-indicator" aria-hidden="true" />
          <strong>Ожидает подготовки</strong>
          <span>Канал будет проверен последовательно в рамках атомарной сессии.</span>
        </div>
      );
    }
    return (
      <RecordedFmp4Player
        source={source}
        playback={playback}
        prepare
        sessionGate={recordedSessionGate}
        admissionKey={recordedAdmissionKey}
        onAdmissionChange={(state) => onRecordedAdmissionChange?.(source.id, state)}
      />
    );
  }

  if (deliveryActive && source.delivery?.kind === "video-url" && source.modality === "video") {
    return (
      <video
        className="observation-media__asset"
        src={source.delivery.url}
        autoPlay
        muted
        playsInline
      />
    );
  }

  if (
    deliveryActive &&
    source.delivery?.kind === "image-url" &&
    (source.modality === "image" || source.modality === "depth")
  ) {
    return <img className="observation-media__asset" src={source.delivery.url} alt={source.label} />;
  }

  if (sourceSelected && source.previewUrl && source.modality === "video") {
    return (
      <video
        className="observation-media__asset"
        src={source.previewUrl}
        autoPlay
        muted
        playsInline
      />
    );
  }

  if (
    sourceSelected &&
    source.previewUrl &&
    (source.modality === "image" || source.modality === "depth")
  ) {
    return <img className="observation-media__asset" src={source.previewUrl} alt={source.label} />;
  }

  return (
    <div className="observation-media__empty">
      <Icon name={sourceIcon[source.modality]} size={20} />
      <strong>
        {source.modality === "video" && source.activation && !source.activation.selected
          ? "Источник отключён"
          : observationSourceStatusLabel(source)}
      </strong>
      <span>
        {source.modality === "video"
          ? source.activation?.controllable
            ? source.activation.selected
              ? "Повторите подключение — локальный адаптер перезапустит выбранную камеру"
              : "Канал остановлен оператором; при необходимости его можно открыть снова"
            : "Канал известен, browser-preview сейчас недоступен"
          : source.description}
      </span>
    </div>
  );
}